Within Firefox, I’m looking for a way to show which HTML elements are used how many times on the current page.
It must display all used HTML elements (even invalid ones) and their count (→ sorted), e.g. like:
16 div 13 span 7 a 5 p 3 h1 2 article 2 h2 1 body 1 head 1 html 1 spoiler
I’d prefer an extension (displayed in the sidebar), but I’m open for other solutions (bookmarklet?). Displaying the list should not require more than a click or key combo.
A solution must be FLOSS.